'use strict'

import { app, protocol, BrowserWindow, Menu, ipcMain, dialog } from 'electron'
import { createProtocol } from 'vue-cli-plugin-electron-builder/lib'
import log from 'electron-log';
// import { path } from 'path'
const path = require('path')
const fs = require('fs')
const iconv = require('iconv-lite');
const childProcess = require('child_process')
//import installExtension, { VUEJS3_DEVTOOLS } from 'electron-devtools-installer'
const isDevelopment = process.env.NODE_ENV !== 'production'

// Scheme must be registered before the app is ready
protocol.registerSchemesAsPrivileged([
  { scheme: 'app', privileges: { secure: true, standard: true } }
])

async function createWindow() {
  // Create the browser window.
  if(process.platform!='darwin'){
    Menu.setApplicationMenu(null)
  }
  const iconPath = path.join(process.cwd(), '\\resources\\icons\\logo.ico')
  const win = new BrowserWindow({
    width: 720,
    height: 700,
    title: 'Pepsi Music Separator',
    icon: iconPath,
    webPreferences: {
      // Use pluginOptions.nodeIntegration, leave this alone
      // See nklayman.github.io/vue-cli-plugin-electron-builder/guide/security.html#node-integration for more info
      nodeIntegration: process.env.ELECTRON_NODE_INTEGRATION,
      contextIsolation: !process.env.ELECTRON_NODE_INTEGRATION,
      preload: path.join(__dirname, 'preload.js')
    }
  })
  if (process.env.WEBPACK_DEV_SERVER_URL) {
    // Load the url of the dev server if in development mode
    await win.loadURL(process.env.WEBPACK_DEV_SERVER_URL)
    if (!process.env.IS_TEST) win.webContents.openDevTools()
  } else {
    createProtocol('app')
    // Load the index.html when not in development    
    win.loadURL('app://./index.html')
  }
}

// Quit when all windows are closed.
app.on('window-all-closed', () => {
  // On macOS it is common for applications and their menu bar
  // to stay active until the user quits explicitly with Cmd + Q
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

app.on('activate', () => {
  // On macOS it's common to re-create a window in the app when the
  // dock icon is clicked and there are no other windows open.
  if (BrowserWindow.getAllWindows().length === 0) createWindow()
})

function getPath(e,name){
  return app.getPath(name)
}

async function handleOpenDialog(e, options) {
  return await dialog.showOpenDialogSync(options)
}

async function openDirectory(e,path){
  const openDirectoryCmdStr='explorer.exe /open,"'+path+'"'
  await childProcess.exec(openDirectoryCmdStr)
}

function deleteTracks(e,filePaths){ 
  console.log("Start To Delete")
  filePaths.forEach(file => {
    fs.rm(file,{force:true},(err)=>{
      if(err)
        log.error(err)
    })
  });
  const windows = BrowserWindow.getAllWindows()
  windows[0].webContents.send('exec:onDeleteTracksCallback',{
    msg:'Delete tracks success',
    stdout: 'Tracks have been deleted'
  })
}

function separateCallback(error,stdout, stderr){
  const windows = BrowserWindow.getAllWindows()
  if(windows.length<1) return
  const encoding = 'cp936'
  if(error){
    log.error(error)
    windows[0].webContents.send('exec:onSeparateTracksCallback',{
      msg:'Separate tracks failed',
      stderr:iconv.decode(Buffer.from(stderr, 'binary'), encoding)
    })
  }
  else{
    windows[0].webContents.send('exec:onSeparateTracksCallback',{
      msg:'Separate tracks success',
      stdout:iconv.decode(Buffer.from(stdout, 'binary'), encoding)
    })
  }
}

function recombineCallback(error,stdout, stderr){
  const windows = BrowserWindow.getAllWindows()
  if(windows.length<1) return
  const encoding = 'cp936'
  if(error){
    log.error(error)
    windows[0].webContents.send('exec:onRecombineTracksCallback',{
      msg:'Recombine tracks failed',
      stderr:iconv.decode(Buffer.from(stderr, 'binary'), encoding)
    })
  }
  else{
    windows[0].webContents.send('exec:onRecombineTracksCallback',{
      msg:'Recombine success',
      stdout:'Recombine success'
    })
  }
}

function separateTracks(e, separateCmdStr) {
  
  let workDir = 'resources/spleeter-win'
  if (process.env.WEBPACK_DEV_SERVER_URL)
    workDir = 'spleeter-win'
  childProcess.exec(separateCmdStr, { encoding: 'binary', cwd: workDir }, separateCallback)
}

function recombineTracks(e, recombineCmdStr) {
  let workDir = 'resources/spleeter-win'
  if (process.env.WEBPACK_DEV_SERVER_URL)
    workDir = 'spleeter-win'
  childProcess.exec(recombineCmdStr, { encoding: 'binary', cwd: workDir }, recombineCallback)
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.on('ready', async () => {
  // if (isDevelopment && !process.env.IS_TEST) {
  //   // Install Vue Devtools
  //   try {
  //     await installExtension(VUEJS3_DEVTOOLS)
  //   } catch (e) {
  //     console.error('Vue Devtools failed to install:', e.toString())
  //   }
  // }
  ipcMain.handle('dialog:showOpenDialogSync', handleOpenDialog)  
  ipcMain.handle('app:getPath', getPath)
  ipcMain.handle('exec:openDirectory', openDirectory)
  ipcMain.handle('exec:separateTracks', separateTracks)
  ipcMain.handle('exec:recombineTracks', recombineTracks)
  ipcMain.handle('exec:deleteTracks', deleteTracks)
  createWindow()
})

// Exit cleanly on request from parent process in development mode.
if (isDevelopment) {
  if (process.platform === 'win32') {
    process.on('message', (data) => {
      if (data === 'graceful-exit') {
        app.quit()
      }
    })
  } else {
    process.on('SIGTERM', () => {
      app.quit()
    })
  }
}
